baber/WOPTO huggingface dataset:
Patent GB-1220268-A (GB)
Title: Steam trap
Inventor: MIYAWAKI SENTARO
IPC: F16T1/16
Filed: 1968-08-30
Abstract: 1,220,268. Steam traps. S. MIYAWAKI. 30 Aug., 1968 [5 Sept., 1967], No. 41422/68. Heading F4U. In a floating disc-type steam trap, steam and condensate from inlet 2 pass through filter 4 and then through a jacket 16 surrounding the main part 11 of the replaceable trap unit, before passing into the latter. The reversible disc 8 of the unit is equipped on its opposite faces with one or more different sized bleeder grooves S 1 , S 2 . Alternatively, tapering holes through the disc, or holes or grooves in the valve seat r 2  may be provided to bleed steam from pressure chamber 21 to the outlet 3. The lower end of chamber 21 communicates with an annular condensate reservoir 22, at least equal in volume to chamber 21, arranged to be heated from jacket 16, and in which removable ring fillers 24 may be placed to adjust the effective reservoir volume. In operation, with disc 8 closed against valve seats r 1 , r 2 , steam bled from chamber 21 through grooves S 2  to outlet 3, is replaced by re-evaporation of condensate from reservoir 22 by heat absorbed from jacket 16, so that opening of disc 8, and discharge from inlet 2 to outlet 3 through the steam trap, is delayed until all of the condensate in reservoir 22 has been re-evaporated and bled away, or, due to cooling of the condensate in jacket 16, no more condensate can be re-evaporated from reservoir 22. A desired operating frequency of the trap may thus be attained. On opening of disc 8 and discharge through the trap, the reservoir 22 refills with condensate, ready for the operating cycle to be repeated after completion of condensate discharge and consequent reclosure of disc 8. The fluid flow path through jacket 16 is defined by flow guide cylinder 12 and holes 13. In a modification (Fig. 5, not shown), the filter may comprise a perforated disc mounted across the top of the flow guide cylinder, the assembly being held in place by a spring mounted between the disc and the outer cover which defines the jacket. The cap 10 and valve seat member 9 may both be made of stainless steel, or the former may be of a copper alloy having a stainless steel inner cap mounted in its inside top surface (Fig. 6a, not shown) to prevent wear due to the action of the floating disc.
Patent GB-1086177-A (GB)
Title: Improvements relating to aircraft landing systems
Inventor: SIMS GEORGE EDWARD
IPC: G05D1/06
Filed: 1963-10-21
Abstract: 1,086,177. Automatic landing systems. ELLIOTT BROTHERS (LONDON) Ltd. Oct. 14, 1964 [Oct. 21, 1963], No. 41442/63. Heading B7G. In the operation of an aircraft automatic landing system a first pitching moment control demand signal is introduced at a first altitude to control the elevators to reduce the aircraft vertical velocity, and a second pitching moment control demand signal is introduced at a lower altitude to reduce the velocity further. As described, at an altitude of 50 feet an elevator demand signal where # is the pitch angle, h is the height above the runway, D is the operator d/dt, and T 1 , T 2 , K 1 -K 5  are constants, is applied to an autopilot 12 controlling the elevators 13, the signals being derived from a gyro 11, a rate gyro 14, and a radio altimeter 15. At a lower predetermined altitude, e.g. 20 feet, the constant K 5  is supplemented by a further constant K 6 , causing an increase in the nose-up pitching moment. This is done by comparing the output of the radio altimeter 15 with a reference 20 and at the predetermined altitude energizing a relay 21 to feed in the constant K 6 . Further increases in pitching moment may be produced at lower altitudes.
Patent GB-917403-A (GB)
Title: Support and method of manufacture thereof, for spindles of textile machines
Inventor: CARNITI ARTURO
IPC: D01H7/08
Filed: 1959-12-07
Abstract: 917,403. Bearings. CARNITE & C. S.p.A. OFFICINE FONDERIE MECCANICHE TESSILI OGGIONESI, A. Dec. 7, 1959, No. 41446/59. Class 12 (1). [Also in Groups IX and XXII] A textile machine spindle 26 is driven by a pulley 20 and is supported by a steel bearing 31 formed in an aluminium or light alloy body 22. The end of the bearing is upset at 35<SP>1</SP> and a pivoted latch 18 retains the spindle pulley 20. The support is secured to a bench 24 by a nut 23.
Patent GB-1280412-A (GB)
Title: Regenerating device
Inventor: DECKER GUNTER
IPC: C23F1/46
Filed: 1970-09-01
Abstract: 1280412 Etching CHEMCUT CORP 1 Sept 1970 41720/70 Heading B6J A regenerating device, e.g. for copper chloride solution used in etching copper and copper alloys, comprises a circulating pump (15), Fig. 1 (not shown), a storage tank (11) for hydrogen peroxide, a storage tank (12) for diluted hydrochloric acid and a reaction tank 14, there being provided conduits (22), (22a) each including a valve, from each storage tank to the reaction tank, the three tanks and pump being mounted on a common frame having at least two connections one for the inlet 16 into the reaction tank for etchant to be regenerated, and the other, for the outlet for regenerated etchant, e.g. a filter 32 and outlet pipe 17 leading to the pump (15), the reaction tank having a redox electrode 13 dipping into the etchant and controlling the supply of hydrogen peroxide and dilute hydrochloric acid to the tank as a function of the condition of the etchant, e.g. by controlling magnetic valves (27), Fig. 2 (not shown), the apertures of which are variable, as a result of the potential. The reaction tank 14 may have a dividing wall 19 comprising impermeable and permeable parts 28, 29 respectively the flow F being such that hydrogen peroxide is added at port 20 before the acid at 21, mixing taking place during passage through apertures 23 in the wall part 29, the electrode 13 being positioned next in line of flow. A by-pass 35 from the pump may be fed into the reaction tank to enhance mixing and an overflow 36 may be connected to the pump which is used to pump excess etchant to a collecting tank when a liquid level indicator is actuated.
Patent GB-1317215-A (GB)
Title: Printers
IPC: B41J1/20
Filed: 1970-09-01
Abstract: 1317215 Selective printing NORTEC COMPUTER DEVICES Inc 1 Sept 1970 [12 Sept 1969] 41738/70 Heading B6F A selective printer employs an endless steel band 14 having type 38 and control indicia 42, 44, etched along one surface. In an alternative embodiment (Fig. 4), the steel band has a combshaped edge with the type formed on the teeth of the comb. The band 14 is supported by two pulleys (16 and 18, Fig. 1), so that the band has two straight portions between the pulleys, one of the straight portions being adjacent the paper web along the line to be printed. One pulley (16), is driven continuously by an electric motor, and the other pulley is an idler supported by an adjustable mounting which permits the band to be replaced and tensioned. The control indicia 42 and 44 are sensed by two transducers, one indicating a particular part, the other indicating a particular character in that part. Both transducers contain an axial pole 48 and a concentric cylindrical pole 50, in which are located a coil (58, Fig. 3), and a cylindrical magnet 62. An array of print hammers is arranged behind the paper web in (Fig. 1), and in front of the paper web with the steel band in the alternative embodiment of (Fig. 4). A suitable hammer mechanism is of the kind described in Specification 1,306,559.
Patent GB-927206-A (GB)
Title: Improvements in or relating to control arrangements for electric motors
Inventor: FRIEDLANDER ERICH SEIGRIED
IPC: H02K17/40
Filed: 1959-12-08
Abstract: 927,206. Control of A.C. motors. GENERAL ELECTRIC CO. Ltd. Nov. 23, 1960 [Dec. 8, 1959], No. 41747/59. Class 38 (3). In a control arrangement for a wound rotor induction motor, power is fed back into the A.C. supply from the secondary windings of the motor, each phase of the secondary windings being connected to each phase of the supply through a semi-conductor controlled rectifier having an anode and a cathode connected in said phases and a gate to which a control signal can be applied for controlling the feedback of power. In one embodiment the control signals to be applied to the base electrodes of the rectifiers are derived from a transformer through a phase-shift network, the rectifiers being of the silicon-controlled type. The secondary windings are short-circuited while the motor is running at full speed to prevent feedback of current by the rectifiers except during acceleration and deceleration of the motor. Specification 831,820 is referred to.
Patent GB-1218089-A (GB)
Title: An apparatus for receiving and dispensing liquid fractions
IPC: B01J47/00
Filed: 1968-09-03
Abstract: 1,218,089. Discharging liquid by gaseous pressure. DYNAMIT NOBEL A. G. Sept. 3, 1968 [Sept. 1, 1967], No. 41899/68. Heading F1R. [Also in Division B1] Apparatus for receiving, storing and dispensing liquid fractions, e.g. for iron-exchange apparatus, comprises a plurality of storage vessels 2, e.g. arranged in a circle, connected by pipes 4 to collector vessels 3 to which the liquid fractions are supplied by a distributer 27, e.g. rotary, as shown, the fractions being selectively removed from vessels 2 by supplying compressed gas to the selected vessel 2, via gas distributer 11a and pipe 18, to discharge its contents via pipe 5 to a common collector vessel 6, from which the liquid is pumped by a pump 19s. As shown, the liquid fractions are obtained from the outflowing liquid from an ironexchange column 20, the liquid passing via pipe 26 to distributer 27. Collector vessels 3 are formed as compartments in an annular ring. Alternatively, the collector and storage vessels may be arranged in parallel rows with the liquid and gas distributers mounted on slides. The supply of gas for discharging storage vessels 2 is controlled in dependence on the liquid level in collector vessel 6 by a float 7 controlling a switch 8. Pump 19a transfers the liquid from vessel 6 to the top of the iron-exchange column 20 via a distributer 21 and a baffle 22, the liquid flow being regulated in dependence on the relative positions of a float responsive to the liquid level in the column and a float resting on the column bed. As shown, the gas distributer comprises a pipe 11a rotatable by a gear 14 and having a diaphragm-actuated connector 15, the gas pressure acting to press the connector into sealing contact with a selected port 17 in a fixed disc 16, Fig. 3 (not shown). Alternatively, the gas distributer comprises a rotary disc with a distributer passage contacting a fixed disc with ports 17, Fig. 4 (not shown). The connections 4 and 5 to vessels 2 may be at the bottom ends, as shown, or connection 4 may be at the top end, via a siphon Fig. 2b (not shown). Alternatively, connections 4 and 5 may be at the top and bottom, respectively, of a container having a funnel connection from its bottom leading to the bottom of vessel 2, Fig. 2c (not shown). The gas and liquid distributers may be actuated manually or automatically, together or independently, and may be controlled by floats in the storage vessels.
Patent GB-868908-A (GB)
Title: Compensating device for table drives in gear-machining machines
IPC: B23F23/10
Filed: 1959-12-09
Abstract: 868,908. Toothed gearing. MAAG GEAR WHEEL & MACHINE CO. Ltd. Dec. 9, 1959 [Dec. 10, 1958], No. 41908/59. Class 80 (1). In a table drive for a gear-cutting machine having a worm-wheel 1 which is driven by two worms 2, 3, and the two worms are connected together by two intermeshing bevel gears 4, 5, the bevel gears 4, 5 also mesh with two other bevel gears 11, 12, which in turn mesh with each other, and the bevel gear 12 is adapted to swing about the'axis of the bevel gears 5, 11 with which it meshes in order to compensate for backlash in the transmission. The bevel gear 11 is mounted on a sleeve which is rotatably mounted on a driving shaft 10, and the bevel gear 12 is rotatably mounted in a rocker 13 which is rotatably mounted about the shaft 10. Angular movement of the rocker 13 is effected by two set screws 14 and 15 which are rigidly connected to the machine bed through a support 16. The shaft carrying the worm 2 is in two parts which are splined together, and the upper part is mounted in an adjustable thrust bearing 17. Backlash is eliminated by first adjusting the thrust bearing 17 and then by appropriate adjustment of the rocker 13 by means of the adjustable stop 14 or 15. In a modification, the set screws 14, 15 are used as stops and the swinging of the rocker 13, and hence of the bevel gear 12, is effected by manually or power operated means.
Patent GB-975295-A (GB)
Title: Improvements in buoyancy jackets
Inventor: CLAYTON LESLIE
IPC: B63C9/115
Filed: 1962-11-07
Abstract: 975,295. Laminates. GREENGATE & IRWELL RUBBER CO. Ltd. Oct. 28, 1963 [Nov. 7, 1962], No. 42040/62. Heading B5N. [Also in Division A3] A life-saving or buoyancy jacket is formed of a plurality of laminations of polyvinyl chloride or other plastics material heat sealed together around the periphery, one surface of each laminate being plain and the other being composed of a plurality of air containing cells, the laminations being assembled with plain and cellular surfaces of adjacent laminations in contact (see Fig. 3).
Patent GB-1067650-A (GB)
Title: Improvements in articulated tipping lorries
IPC: B60P1/18
Filed: 1964-10-16
Abstract: 1,067,650. Articulated tipping lorries. G. E. NEVILLE. Jan. 17, 1966 [Oct. 16, 1964], No. 42216/64. Heading B7B. An articulated tipping lorry comprises a body 1 having a base frame including side members 2, 3, (one shown), connected by two parallel arms 4, 5 to points 6, 7 on the turntable 8 mounted on the tractor unit 9, the arms 4, 5 being connected by swiveljointed links 10, 11 to a bogey frame 12 and the side members 2, 3 having their rear ends pivoted at 13, 14 to the rear of the bogey frame 12, and hydraulic rams 17, 18 connected between the arms 4, 5 and the side members- 2, 3. The rams 17, 18 are mounted inboard of the arms 4, 5, the cylinders being pivoted to lateral extensions 15, 16 of the arms 4, 5, and the rams to the side members 2, 3. The links 10, 11 are connected at their front ends to the extensions 15, 16.
Patent GB-1107022-A (GB)
Title: Improvements in the development of light-sensitive silver halide materials
Inventor: WILLEMS JOZEF FRANS
IPC: C08G18/71
Filed: 1965-10-07
Abstract: Urethans are prepared as follows: (i) methoxypolyethylene glycol (M.Wt. 750) is reacted with bromoacetyl chloride to give methoxypolyethylene glycol bromoacetate which is in turn reacted with potassium isocyanate to give methoxypolyethylene glycol isocyanatoacetate and then ethanol, n-hexadecylol, ethylene glycol or a polyethylene glycol (M.Wt. 300 or 1000) to give the corresponding urethans or diurethans or (ii) methoxypolyethylene glycol (M.Wt. 750) is reacted with 2:5-diisocyanatotoluene or 1:6-diisocyanato-hexane to give a corresponding diurethan.
Patent GB-1074677-A (GB)
Title: Analogue computer for calculating bending moments and/or shearforces of ships
IPC: G06G7/70
Filed: 1963-10-29
Abstract: 1,074,677. Electric analogue calculating. G. DE WILDE. March 10, 1964 [Oct. 29, 1963], No. 42671/63. Heading G4G. Fig. 1 shows a circuit for calculating the bending moment of a ship due to a load W1 in one section of the ship. The tap of potentiometer 1 is set in accordance with W1 and feeds three resistances 2-4 to give quantities proportional to W1. Three resistances 5-7 are connected in parallel to potentiometer 1 to give quantities proportional to fixed items. The outputs of resistances 4 and 7 are added and applied across a potentiometer 9 which is set to multiply by a quantity M2 which is a function of draught and the position of the section. Similarly, the outputs of resistances 3 and 6 are summed and multiplied by a similar quantity M1 by potentiometer 11, the output of which is added to the sum of the outputs of resistances 2 and 5 and compared in a subtractive sense with the output of potentiometer 9 by meter 15 which indicates the bending moment due to the section. Similar circuits may be used for calculating shear force and trim, and a plurality of sets of such circuits (e.g. six), one set for each section of the ship, may be connected together with two selector switches, Fig. 2 (not shown). One of the switches determines the quantity to be measured, which may be displacement, trim, bending moment or shear force, and the other determines the section about which the relevant quantity is measured.
Patent GB-1046456-A (GB)
Title: Improvements in and relating to washers and the like
Inventor: BURDIN MAURICE ALFRED
IPC: F16B37/14
Filed: 1961-11-29
Abstract: 1,046,456. Washers; covers for nuts and bolts. MORNING (CROYDON) Ltd. Jan. 29, 1963 [Nov. 29, 1961], No. 42685/61. Heading F2H. A sealing washer, Fig. 1, of polyethylene or natural or artificial rubber, has a ridge 7 for engagement in a groove 18 of a cap, Fig. 3, which is thus secured over a bolt head or nut bearing on the washer top 6, and a concave underside of the washer bears annular ridges which may vary in size. The washer need not be circular in plan and need not have a tubular extension 9. The top of the washer skirt may have annular corrugations. The washer and cap may be moulded in one piece, side-by-side, joined by a small severable strip until required for use. There may be at least one annular groove or a helical groove in the washer bore.
Patent GB-1079585-A (GB)
Title: Treating polycarbonate filaments and films
Inventor: KUBITZEK HARRY
IPC: D06M13/127
Filed: 1965-10-08
Abstract: 1,079,585. Treating polycarbonate filaments and films. FARBENFABRIKEN BAYER A.G. Oct. 8, 1965 [Oct. 10, 1964], No. 42810/65. Heading B5B. Amorphous or partly crystalline polycarbonate filaments and films are rendered wholly crystalline by treating them with a volatile liquid organic swelling agent having a crystallizing effect, stretching them in the swollen state at room temperature and subjecting the stretched filaments or films first to a current of hot air to remove the swelling agent and then to a temperature within the range 180‹ to 260‹ C. by means of a current of preheated air to heat-set them. The swelling agents may be aliphatic ketones and esters having the general formula in which R and R<SP>1</SP>, which may be the same or different, represent alkyl or alkenyl groups. The filaments or films may be stretched in the swollen state at a stretch ratio within the range 3 :1 to 6 : 1. The process is especially suitable for filaments and films of poly-[2,2- (4,4<SP>1</SP>-dihydroxydiphenyl) propanecarbonate]. A bundle of polycarbonate filaments to be treated may be passed successively through a bath of the swelling agent, a stretching device, a drying zone (in which the swelling agent is evaporated from the bundle of stretched filaments by means of a current of air at 80‹ to 160‹ C.) and a heat-setting zone in which the bundle is exposed to a current of air at 220‹ to 250‹ C. The bundle of treated filaments may then be drawn off through a bath of finish and through the nip of a pair of squeezing rollers and collected. The draw roller or rollers forming part of the stretching device may be located downstream from the heat-setting zone or between the drying and heat-setting zones instead of between the swelling and evaporation zones.
Patent GB-1156687-A (GB)
Title: Cross-Carriage Flame Cutting Machine
IPC: B23K7/00
Filed: 1966-09-26
Abstract: 1,156,687. Cutting by fusion. MESSER GRIESHEIM G.m.b.H. 26 Sept., 1966 [24 Sept., 1965], No. 42849/66. Heading B3V. A cross-carriage flame cutting machine has its upper carriage 8 running along a guide rail 7 secured to the lower carriage 1 and disposed in a trough 74 filled with liquid to a level above the guides of the guide rail and having a cover 86 with side walls depending into the liquid. Four upper carriages 8-11, Fig. 1 (not shown), run along the rail 76 and each carries a torch (12)- (15) for cutting a workpiece 17. Each upper carriage has a U-shaped chassis 83 carrying ball segments 81, 82 engaging in side grooves in the rail head 76. The trough 74 is formed by a plate 71 and is covered by a movable screen 112. A similar guiding assembly is provided for the supports (3), (4), Fig. 3 (not shown), of the lower carriage 1, as described in Specification 1,156,690.
Patent GB-1121841-A (GB)
Title: A pressure fluid operated cylinder
IPC: F16J13/10
Filed: 1965-10-08
Abstract: 1,121,841. Circlips; cylinders. P. L. PANIGATI. 8 Oct., 1965 [14 Oct., 1964], No. 42861/65. Headings F2H and F2T. A circlip 13 is used to retain an end closure 2 in a tubular body 1 of a fluid-actuated cylinder. The circlip has protuberances 13a, 13b, and 13c, and is located in a circumferential recess 14 in the closure 2, and arcuate slots 15 in the body 1, the circlip being retained in the correct circumferential position by a screw 18 which locates in a recess 17. The closure 2 has a passageway 2a for pressure fluid, and a recess 12 to accept the end of a stem 6a to which a piston 5 is welded. The cross-section of the circlip reduces in width from the portion 13a to 13b and 13c, respectively.
Patent GB-1366144-A (GB)
Title: Combustion chambers for gas turbine engines
IPC: F23R3/14
Filed: 1971-09-14
Abstract: 1366144 Gas turbine engine combustion equipment MITSUBISHI JUKOGYO KK 14 Sept 1971 [14 Sept 1970] 42879/71 Headings F4T and TA2A1 A combustion chamber for a gas turbine engine comprises a fuel injector, a swirler 2 arranged concentrically with respect to the fuel injector and having swirl vanes 101, the swirl vanes being inclined at an angle of between 30 degrees and 40 degrees to an axial plane, there being a plurality of guide ducts 3, 4, 5 disposed in the wall of the chamber to guide air into the chamber towards the mixing zone. The guide ducts are arranged in an annular row being equi-spaced in the annular direction.
Patent GB-1452672-A (GB)
Title: Drilling tool
IPC: E21B10/00
Filed: 1974-10-03
Abstract: 1452672 Drilling undercut cavities A FISCHER 3 Oct 1974 [5 Oct 1973] 43029/74 Heading B3C [Also in Division F2]  A drilling tool 1 for forming a bore having an undercut cavity suitable for use in securing anchoring members in masonry (see Division F2) comprises a shaft 2 and a drill bit 3 having means, end cutting edges 4, for drilling a bore 7 with a diameter larger than that of the shaft and a lateral cutting edge 5 so arranged that, after the bore 7 has been drilled, an undercut cavity 6 can be formed by pivoting the tool about an axis transverse to the axis of the bore, rotating the tool about its own axis and moving it so that its shaft sweeps out a substantially conical surface. The tool is pivoted about an axis defined by a band 8 provided on the shaft and having a diameter at least equal to that of the bore 7. Two forms of band are shown, Figs. 1 and 2, that in Fig. 1 being adjustable on the shaft while the other 8<SP>1</SP> in Fig. 2 acting also as a depth stop. Also in Fig. 2 the lateral cutting edges 5<SP>1</SP> are inclined to the tool axis,
Patent GB-1112873-A (GB)
Title: Azo dyes for cellulosic materials
IPC: D21H21/28
Filed: 1966-09-27
Abstract: The invention comprises dyes of the formula <FORM:1112873/C4-C5/1> where R is a substituent other than sulphonic acid or carboxylic acid; R1 is hydrogen or alkyl of 1-12 carbon atoms; R2 and R3 are alkyl of 1-12 carbon atoms, cycloalkyl, aralkyl or aryl; R4 and R5 are hydrogen, alkyl of 1-12 carbon atoms, cycloalkyl, aralkyl or aryl; X is chlorine or bromine; n is 1-5 and m is 0-4, at least one m being less than 4. The compounds are prepared by heating together in solution at 50-100 DEG  C. compounds of the formulae <FORM:1112873/C4-C5/2> <FORM:1112873/C4-C5/3> The intermediate halomethyl compounds may be prepared by reacting the parent azobenzene in concentrated sulphuric acid with a bis-halomethyl ether or with paraformaldehyde and a halosulphonic acid.